Where does “thesaurus” come from?

thesaurus (Late Latin) comes from Ancient Greek θησαυρός, from Ancient Greek τίθημι, from Proto-Indo-European dʰeh₁- — to do, put, place.

thesaurus (Late Latin): treasure, hoard; a dear friend, loved one; a...

Definitions

  1. treasure, hoard; a dear friend, loved one; a...

Ancestry of “thesaurus”, step by step

StepLanguageWordMeaning
1Ancient Greekθησαυρόςtreasure; vault, repository, chest
2Ancient GreekτίθημιI put, place, set; I make, cause to be; I make
3Proto-Indo-Europeandʰeh₁-to do, put, place
Every word from Proto-Indo-European dʰeh₁- →Every word from Ancient Greek τίθημι →Every word from Ancient Greek θησαυρός →